Blog · October 14, 2026 · Illinois
East Peoria Plat Map, Illinois: plats and lots
Lots in East Peoria trace back to recorded plats filed with the county.
Main page: Tazewell County, IL GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When a listing near Marquette Heights mentions a lot number, you'll need the East Peoria plat map to make sense of it. This East Peoria guide covers: where plats are filed, how a plat differs from a parcel map, and the details that matter to buyers.
Who keeps the East Peoria plat map
For land around Marquette Heights, the deed or parcel record often names the subdivision and plat reference; bring that to the recorder's office or its online index.
The free map to start with
The public parcel map for this area is the Tazewell County ArcGIS parcel map, and no login is needed to use it. In and around Washington, enter a street address, an owner's name or a parcel number, and the viewer zooms to the match. For a parcel near Morton, the parcel card typically gives the owner of record, assessed acreage, the parcel number and in many cases the last transfer.
Taking the map into the field
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Washington, though signal can drop in rural spots. A screenshot of the parcel near Washington with its ID is a good backup.
A quick look at the area
Pekin serves as the county seat, where most land records are kept. Smaller places on the map include Creve Coeur, Marquette Heights, Morton, and North Pekin, each with its own cluster of lots. Roughly 129,541 people live in Tazewell County (Census estimate, 2023) on roughly 646 square miles. Tazewell County dates to 1827, and some chains of title near Creve Coeur are long.
Limits of the parcel data
The acreage figure is a tax-roll number; just a licensed surveyor can set the real boundary for a parcel near Morton. Owner names and values update on a schedule, so a recent sale near Pekin might lag behind.
When a parcel crosses a boundary
Tazewell County meets Fulton County, Logan County, McLean County, Mason County, and Peoria County, and each of those keeps its own parcel map. Acreage along the edge near Creve Coeur can show up in two county records, so open the neighboring map before you assume the acreage. For property near Morton, the Platbookmapper state page links each bordering county map across Illinois.
Who handles what
If the acreage or value on a parcel near Marquette Heights looks off are handled by the Supervisor of Assessments, working with township assessors, which maintains the tax roll. Building or septic questions for a lot near Creve Coeur go to planning, building or health offices, depending on whether the land is inside town limits.
East Peoria, IL: the basics
East Peoria is part of Tazewell County, Illinois, which means parcel data comes from the county. If you're looking near Pekin, the municipality handles matters such as zoning, permits and utilities inside its limits, and the county still keeps the parcel and deed records. Lots just outside the city limits toward Morton often answers to county rules rather than the town's.
How a plat differs from the tax map
The tax map on the Tazewell County ArcGIS parcel map is a summary, while the recorded plat is the legal document.
Deeds, plats and who keeps them
The map is an index, not the title: recorded deeds, subdivision plats and easements for land near Pekin sit with the county Recorder of Deeds (in many counties the County Clerk and Recorder). On ground around Creve Coeur, have ready the book and page from the tax record and the lookup takes minutes.
Reading the plat sheet
Recorded easements around Marquette Heights stay with the land when it sells; read the notes on the sheet.
How land is described here
Illinois uses the Public Land Survey System, so rural legal descriptions near Morton cite section, township and range. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though real sections near Marquette Heights vary in size. Keep the legal description for land near Marquette Heights before you request a deed or survey.
Metes and bounds instead
Acreage around Morton outside a subdivision may have no plat at all; look for a recorded survey for land near North Pekin.
Getting a copy
With a lot near North Pekin, some counties put plat images online, while others require a visit or a request; copy fees are usually small.
Amended plats
An amended plat may change lots around Marquette Heights, so check for later filings; street vacations near Pekin show up in the records too.
East Peoria: common questions
Can lots near Washington be combined?
Lot splits in East Peoria go through the planning office, often with a surveyor's drawing.
What is a lot and block description in East Peoria?
Closer to North Pekin, the description sends you to a specific recorded plat; the deed names the subdivision.
How do I get a copy of a plat in East Peoria?
In most cases, recorded plats near Morton are filed with the county Recorder of Deeds (in many counties the County Clerk and Recorder); use the plat reference from the deed or parcel record.
How far back do plats go near Pekin?
Generally, older plats near Pekin may be on film or paper.
Is the parcel map a survey near Washington?
No; boundary questions near Marquette Heights need a licensed surveyor; a survey sets the real corners
Open the official Tazewell County, IL parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.